00496pab a2200157 454500008004000000100001600040245011900056260000900175300001400184362000800198650003000206650003100236650002900267650001300296773002900309180718b2004   xxu||||| |||| 00| 0 eng d  aHills, John  aHeading for retirement? National insurance, state pensions, and the future of the contributory principle in the UK  c2004  ap.347-71.  aJul  aInsurance - Great Britain  aRetirement - Great Britain  aPensions - Great Britain  aPensions  aJournal of Social Policy